Principal Stresses

Famous quotes containing the words principal and/or stresses:

    There are three principal means of acquiring knowledge available to us: observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this reason, creative geniuses are not common.
    Denis Diderot (1713–1784)

    Families need families. Parents need to be parented. Grandparents, aunts, and uncles are back in fashion because they are necessary. Stresses on many families are out of proportion to anything two parents can handle.
    T. Berry Brazelton (20th century)